What Setting to start with on GA Warp Prop

[rv9ralph]

I replaced my GSC with a Warp Drive which I just installed, but am at a loss as to what pitch to start with. Here is my set up.
Kitfox 3, 85 mph cruise, 90 mph VNE
1990 Rotax 912 80 hp.
New prop: Warp 70" 3 blade, tapered tip, nickel leading edge.

Any suggestions. Guidelines. Words of Wisdom?

Ralph

[avidflyer]

What did Warp Drive suggest? Darrell is real easy to talk to there, and is very knowledgeable about his props. JImChuk

[rv9ralph]

I talked to Darryl at length when I ordered, but forgot to ask where to start for a setting, thought I would hit the brain trust.
Ralph

[Dave S]

Ralph,

Darryl originally gave me a range to start with of 10-15 degrees at the tip and suggested a midrange for the same prop on our ULS to start....for your 3 with the 80 horse being a little lighter and a little less HP.......I doubt that it would be much different...to be on the safe side - go a little less. I started with 12, experimented with 11 and ended up @ 12.5 which gave a nice balance between best ROC and cruise.

If in doubt, I'd second giving Darryl a call again.

[kitfoxnick]

I run mine at 11.5 degrees measured at the tips.

[Guy Buchanan]

One thing I noticed with the Warp taper tip is that the airfoils in the tapered section are not really very precise. (They're hand ground.) I therefore started measuring pitch at the 75% point to get the blades more even. (And no, I can't tell you off the top of my head what I'm running for my 100hp IV. My guess as to your pitch is 11.5 - 12 degrees at the tip.)